What must Filia do in order to be able to use Lucy's great magic?
　I began to explain to Filia in front of me.

''First, let's write down what Filia-sama can do now, shall we?

What can I do now?

'Yes. What I've been teaching you so far, Filia-sama is steadily getting better at doing what I've been teaching you. First, figure it out and figure out what your starting point is. Then figure out what you need to do to reach the point of using Lucy-sensei's grimoire.

'Wow...... Solon looks like a teacher.

...Isn't it usually like you to be a teacher?

　Filia's words disappointed me a bit.
　It's true that I may not usually be able to do much that is typical of a master.

　Filia giggled.

I'm not sure. I'm sure you'll find that it's great that you're usually so kind to me, but now I think it's even better that you're a good-looking teacher.

Lady Filia....

And Solon has always been very protective of me. Right?

　Filia looked at me happily.
　On the contrary, I felt my face flush as I started to feel embarrassed.

　Filia's words were always straightforward, and I was embarrassed to hear them.

''Ah, thank you. Then, let's go over the current situation as soon as possible, shall we?''

　In my absence, Sofia and Lisa must have played the role of teachers, teaching Filia magic.
　I'd like to make sure that was a success as well.

How did you two's teachership go?

Lisa was a great teacher. Kind and gentle.

　I was worried about Lisa, the careless white mage, teaching Filia.
　Both Lisa and Filia have restless personalities, and I thought there might be some trouble.
　But they didn't seem to have much to worry about.

　Thanks to Lisa, Filia had made quite a bit of progress in learning about support magic.
　She couldn't say she had fully mastered intermediate magic, but she was able to get the basics under control.

　Right now, Lisa stayed in the mansion to protect everyone else.
　In that sense, I'll have to thank Lisa later.

　But that's only if I can get back to the mansion safely.

''How was Sophia's teaching style?''

...hmmm...

　Filia gave a troubled smile.
　Well, it was half expected, but it probably didn't work out.
　Sophia was too much of a genius to be good at teaching others.

　Filia and Lisa seem to be a good match for each other personality-wise, but on the other hand, there's a distance between Filia and Sophia.

　I didn't ask any more deeply and handed Filia a piece of paper, ink and a quill pen.
　Filia wrote down the magic she could do one by one.

　It's not that much yet, but that doesn't mean that the magic that Filia can use is small either.
　The fire magic I taught her when we met.
　The levitation magic I practiced for the first time in the mansion.

　And the elementary offensive and defensive magic that I learned in preparation for the attack on Necropolis. And the basic support magic.

　Filia's face lights up as I write.
　That was one of my aims.

　The plan was to get Filia to regain her confidence and then start practicing.

'It's done, Solon,'

'Thank you. Now......

　I looked around.
　The attic was like a storage room, with all sorts of things in it.

　I see a small glass bottle among them.

'So let's try again, shall we?'

　Filia nodded with a nervous look on her face.
　The other day, she had failed to practice strengthening the glass bottle.

　She was going to try it again.

　She took out her apple tree wand and touched it to the glass bottle.
　You have to understand the material of the glass in order to strengthen it.

　In support magic, you must understand the person you are supporting and be clear on which areas of their abilities to strengthen.
　This is especially true if it is something with a large amount of magic, like Lucy's Great Magic.

　Strengthening the glass bottle is an exercise for that.

'Try to imagine the glass bottle being strengthened to the point where it's not broken, in a concrete way. It's like bringing reality closer to your own image.

Yes.

　Filia nodded and closed her eyes to face the glass bottle.
　After a moment, Filia opened her blue eyes.　　

'Enhanced!'

　At the same time as Filia's words, the magic passed from the wand to the glass bottle. The glass bottle glowed red.
　Then, after a moment, it stopped glowing.

　I touched the bottle with my finger to make sure it was safe.
　Then I took it up and dropped it on the floor some distance away.

　The glass bottle didn't break.

"Yay...!

　Filia smiled happily and looked at me.

　With this, I've overcome the mistake I made the other day.
　However, there are still a lot of things I have to learn from here to be able to use Lucy's grimoire.

　I need to be able to use more advanced support magic, but I also need to understand the structure of the grimoire itself.
　Even though I was able to decipher it, the magic written in the grimoire was complex.

　I taught it to Filia one by one.
　Filia has been listening to my words more intently than usual.

　I think it's a sign that Filia is trying to help us and that she really wants to be able to use Lucy's great magic.

　Before I knew it, the time was past midnight and the date had changed.

'Aren't you sleepy, Filia-sama?'

I'm sleepy but I'll be fine. Solon is teaching me magic.

But you shouldn't push yourself too hard.

Solon is too kind. You can't ask me if I'm sleepy when you said you would stay up all night and teach me a hard lesson.

　I smiled and nodded, "I suppose so.

'Oh, but if Solon is tired...'

'I'll be fine. Like I said, I'd be exhausted for Lady Filia's sake.

Yes, thank you, Solon.

　Then we went back to training in magic once again.
　Filia's understanding of grimoires, the basics of advanced support magic, and the minimum amount of magic theory required, was steadily improving.
　Originally, Filia was not only talented in magic, she was also quite smart.

　Normally, she is a bit unserious and lacks concentration, but if she really worked at it like she is now, her progress was instantaneous.

　When they finally got to the point where they were ready to use Lucy's grimoire, it was already 3am.

　Filia's eyelids looked quite heavy and sluggish.
　I chuckled and patted Filia's head.

'Well done, Filia-sama. Now rest up for the day.''

"....I promised Solon that I would stay up all night......practicing. So.....

　Before she could finish saying those words, Filia giggled and nodded.
　It seemed that the sleeper had completely taken her consciousness away from her.

　I held the sleeping Filia in my arms.
　Fortunately, there were several blankets in the room, so I put one over her.

'Good night, Miss Filia.

　As I mumbled, I too felt suddenly drowsy, and then I lost consciousness.